Home / 13,566.89-18,728.79-9,037.11

Finding the Fourth Proportional to 13,566.89, 18,728.79 and 9,037.11

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Solution

The fourth proportional to 13,566.89, 18,728.79 and 9,037.11 is: 12,475.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.89 : 18,728.79 = 9,037.11 : x
  2. Step 2: Convert to fraction form
    13,566.89/18,728.79 = 9,037.11/x
  3. Step 3: Cross multiply
    13,566.89x = 18,728.79 × 9,037.11
  4. Step 4: Simplify right side
    13,566.89x = 169,254,041.75
  5. Step 5: Solve for x
    x = 169,254,041.75/13,566.89
  6. Step 6: Final answer
    x = 12,475.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.